a = [102, 110, 101, 107,-125, 78, 109, 116, -123, 122, 111, 87, -111, 115, -112, 79, -115, 127, 99, 54, 108, 110, -121, 105, -93, 111, 88, 115, 102, 86, -109, -97, 105, 112, 56, 118, 113, 120, 111, 99, -60, -126, -124, -66, -69, -51]
flag = ''
for i in range(len(a)):
    a[i] = (a[i]+256)%256
    a[i] += i
    a[i] ^= i
    a[i] -= 2*i
    flag += chr(a[i])
print(flag)